[jira] [Updated] (HDFS-8361) Choose SSD over DISK in block placement

2017-01-05 Thread Junping Du (JIRA) 

 [ 
https://issues.apache.org/jira/browse/HDFS-8361?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Junping Du updated HDFS-8361:
-
Fix Version/s: 2.8.0

> Choose SSD over DISK in block placement
> ---
>
> Key: HDFS-8361
> URL: https://issues.apache.org/jira/browse/HDFS-8361
> Project: Hadoop HDFS
>  Issue Type: Improvement
>  Components: namenode
>Reporter: Tsz Wo Nicholas Sze
>Assignee: Tsz Wo Nicholas Sze
> Fix For: 2.8.0, 2.7.1, 3.0.0-alpha1
>
> Attachments: h8361_20150508.patch, h8361_20150612.patch
>
>
> BlockPlacementPolicyDefault chooses the StorageType by iterating the given 
> StorageType EnumMap in its natural order (the order in which the enum 
> constants are declared).  So DISK will be chosen over SSD in One-SSD policy 
> since DISK is declared before SSD as shown below.  We should choose SSD first.
> {code}
> public enum StorageType {
>   DISK(false),
>   SSD(false),
>   ARCHIVE(false),
>   RAM_DISK(true);
>   ...
> }
> {code}



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[jira] [Updated] (HDFS-8361) Choose SSD over DISK in block placement

2015-06-15 Thread Tsz Wo Nicholas Sze (JIRA) 

 [ 
https://issues.apache.org/jira/browse/HDFS-8361?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Tsz Wo Nicholas Sze updated HDFS-8361:
--
   Resolution: Fixed
Fix Version/s: 2.7.1
 Hadoop Flags: Reviewed
   Status: Resolved  (was: Patch Available)

Thanks Joe and Jing for the reviewing.

I have committed this.

> Choose SSD over DISK in block placement
> ---
>
> Key: HDFS-8361
> URL: https://issues.apache.org/jira/browse/HDFS-8361
> Project: Hadoop HDFS
>  Issue Type: Improvement
>  Components: namenode
>Reporter: Tsz Wo Nicholas Sze
>Assignee: Tsz Wo Nicholas Sze
> Fix For: 2.7.1
>
> Attachments: h8361_20150508.patch, h8361_20150612.patch
>
>
> BlockPlacementPolicyDefault chooses the StorageType by iterating the given 
> StorageType EnumMap in its natural order (the order in which the enum 
> constants are declared).  So DISK will be chosen over SSD in One-SSD policy 
> since DISK is declared before SSD as shown below.  We should choose SSD first.
> {code}
> public enum StorageType {
>   DISK(false),
>   SSD(false),
>   ARCHIVE(false),
>   RAM_DISK(true);
>   ...
> }
> {code}



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[jira] [Updated] (HDFS-8361) Choose SSD over DISK in block placement

2015-06-12 Thread Tsz Wo Nicholas Sze (JIRA) 

 [ 
https://issues.apache.org/jira/browse/HDFS-8361?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Tsz Wo Nicholas Sze updated HDFS-8361:
--
Status: Patch Available  (was: Open)

> Choose SSD over DISK in block placement
> ---
>
> Key: HDFS-8361
> URL: https://issues.apache.org/jira/browse/HDFS-8361
> Project: Hadoop HDFS
>  Issue Type: Improvement
>  Components: namenode
>Reporter: Tsz Wo Nicholas Sze
>Assignee: Tsz Wo Nicholas Sze
> Attachments: h8361_20150508.patch, h8361_20150612.patch
>
>
> BlockPlacementPolicyDefault chooses the StorageType by iterating the given 
> StorageType EnumMap in its natural order (the order in which the enum 
> constants are declared).  So DISK will be chosen over SSD in One-SSD policy 
> since DISK is declared before SSD as shown below.  We should choose SSD first.
> {code}
> public enum StorageType {
>   DISK(false),
>   SSD(false),
>   ARCHIVE(false),
>   RAM_DISK(true);
>   ...
> }
> {code}



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[jira] [Updated] (HDFS-8361) Choose SSD over DISK in block placement

2015-06-12 Thread Tsz Wo Nicholas Sze (JIRA) 

 [ 
https://issues.apache.org/jira/browse/HDFS-8361?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Tsz Wo Nicholas Sze updated HDFS-8361:
--
Attachment: h8361_20150612.patch

h8361_20150612.patch: addresses Joe's comments.

> Choose SSD over DISK in block placement
> ---
>
> Key: HDFS-8361
> URL: https://issues.apache.org/jira/browse/HDFS-8361
> Project: Hadoop HDFS
>  Issue Type: Improvement
>  Components: namenode
>Reporter: Tsz Wo Nicholas Sze
>Assignee: Tsz Wo Nicholas Sze
> Attachments: h8361_20150508.patch, h8361_20150612.patch
>
>
> BlockPlacementPolicyDefault chooses the StorageType by iterating the given 
> StorageType EnumMap in its natural order (the order in which the enum 
> constants are declared).  So DISK will be chosen over SSD in One-SSD policy 
> since DISK is declared before SSD as shown below.  We should choose SSD first.
> {code}
> public enum StorageType {
>   DISK(false),
>   SSD(false),
>   ARCHIVE(false),
>   RAM_DISK(true);
>   ...
> }
> {code}



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[jira] [Updated] (HDFS-8361) Choose SSD over DISK in block placement

2015-05-08 Thread Tsz Wo Nicholas Sze (JIRA) 

 [ 
https://issues.apache.org/jira/browse/HDFS-8361?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Tsz Wo Nicholas Sze updated HDFS-8361:
--
Attachment: h8361_20150508.patch

h8361_20150508.patch: reorders the storage types.

> Choose SSD over DISK in block placement
> ---
>
> Key: HDFS-8361
> URL: https://issues.apache.org/jira/browse/HDFS-8361
> Project: Hadoop HDFS
>  Issue Type: Improvement
>  Components: namenode
>Reporter: Tsz Wo Nicholas Sze
>Assignee: Tsz Wo Nicholas Sze
> Attachments: h8361_20150508.patch
>
>
> BlockPlacementPolicyDefault chooses the StorageType by iterating the given 
> StorageType EnumMap in its natural order (the order in which the enum 
> constants are declared).  So DISK will be chosen over SSD in One-SSD policy 
> since DISK is declared before SSD as shown below.  We should choose SSD first.
> {code}
> public enum StorageType {
>   DISK(false),
>   SSD(false),
>   ARCHIVE(false),
>   RAM_DISK(true);
>   ...
> }
> {code}



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